:root {
      --bg-color: #e8e6e1;
      --text-color: #5a5854;
      --panel-bg: rgba(245, 243, 238, 0.85);
      --btn-border: rgba(90, 88, 84, 0.3);
    }

    * {
      cursor: none !important;
    }

    body,
    html {
      margin: 0;
      padding: 0;
      width: 100%;
      height: 100%;
      background-color: var(--bg-color);
      color: var(--text-color);
      font-family: 'Space Grotesk', 'Helvetica Neue', Helvetica, Arial, sans-serif;
      overflow: hidden;
      user-select: none;
      /* Woven canvas texture */
      background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 2px, rgba(0, 0, 0, 0.015) 2px, rgba(0, 0, 0, 0.015) 4px),
        repeating-linear-gradient(-45deg, transparent, transparent 2px, rgba(0, 0, 0, 0.015) 2px, rgba(0, 0, 0, 0.015) 4px),
        url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");
    }

    /* Custom Cursor */
    #custom-cursor {
      position: fixed;
      top: 0;
      left: 0;
      width: 6px;
      height: 6px;
      background: var(--text-color);
      border-radius: 50%;
      pointer-events: none;
      z-index: 9999;
      transform: translate(-50%, -50%);
      transition: width 0.3s ease, height 0.3s ease, background 0.3s ease, border 0.3s ease;
      box-sizing: border-box;
    }

    #custom-cursor.hover {
      width: 32px;
      height: 32px;
      background: transparent;
      border: 1px solid var(--text-color);
    }

    /* Prologue Sequence */
    #prologue {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: var(--bg-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      z-index: 100;
      opacity: 1;
      transition: opacity 2s ease;
      pointer-events: auto;
    }

    .prologue-content {
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 30px;
    }

    #prologue h1 {
      font-family: 'Space Grotesk', 'Avenir', 'Helvetica Neue', Helvetica, sans-serif;
      font-weight: 300;
      color: var(--text-color);
      opacity: 0;
      font-size: clamp(2rem, 6vw, 6rem);
      letter-spacing: 0px;
      margin: 0;
      line-height: 1;
      transform: translateY(20px);
      transition: opacity 2s ease, letter-spacing 3s cubic-bezier(0.2, 0.8, 0.2, 1), transform 2s ease;
    }

    #prologue h1.visible {
      opacity: 1;
      letter-spacing: 12px;
      transform: translateY(0);
    }

    .prologue-quote {
      font-family: 'Space Grotesk', 'Avenir', 'Helvetica Neue', Helvetica, sans-serif;
      font-weight: 300;
      font-size: 14px;
      font-style: italic;
      color: #7a7874;
      opacity: 0;
      max-width: 800px;
      padding: 0 20px;
      line-height: 1.6;
      margin: 0;
      transition: opacity 2s ease 1s;
    }

    .prologue-quote.visible {
      opacity: 1;
    }

    .prologue-subtext {
      font-family: 'Space Grotesk', 'Avenir', 'Helvetica Neue', Helvetica, sans-serif;
      font-size: 11px;
      letter-spacing: 4px;
      color: #8a8884;
      margin-top: 40px;
      opacity: 0;
      transition: opacity 1.5s ease 2s;
      animation: pulseText 3s infinite alternate ease-in-out;
    }

    .prologue-subtext.visible {
      opacity: 1;
    }

    @keyframes pulseText {
      0% { opacity: 0.3; }
      100% { opacity: 1; }
    }

    #canvas-container {
      position: relative;
      width: 100vw;
      height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .fragment {
      position: absolute;
      top: 0;
      left: 0;
      transform-origin: center;
      will-change: transform;
      transform: translateZ(0);
    }

    .fragment svg {
      overflow: visible;
      filter: drop-shadow(0px 8px 12px rgba(0, 0, 0, 0.1));
      pointer-events: none;
      will-change: filter;
    }

    .fragment path {
      pointer-events: auto;
    }

    /* Kintsugi Glow Effect (Now Depth Shadow) */
    .kintsugi .fragment svg {
      filter: drop-shadow(0px 15px 20px rgba(0, 0, 0, 0.4)) drop-shadow(0px 5px 8px rgba(0, 0, 0, 0.3)) !important;
      transition: filter 2s ease-out !important; /* Shortened to reduce Chrome CPU choking */
    }

    #bg-dimmer {
      position: fixed;
      top: 0; left: 0; width: 100%; height: 100%;
      background: #181716; /* Museum dark gray */
      opacity: 0;
      z-index: -2; /* Above the canvas background, below gold underlay */
      pointer-events: none;
      will-change: opacity;
      transition: opacity 4s ease;
    }

    body.kintsugi #bg-dimmer {
      opacity: 0.85; /* Dim the background to 85% opacity over the woven texture */
    }

    body.kintsugi #ui-panel {
      opacity: 0.2;
      transition: opacity 3s ease;
    }

    body.kintsugi #ui-panel:hover {
      opacity: 1;
    }

    /* Use GPU-accelerated opacity to dim fragments instead of expensive SVG filters */
    body.kintsugi .fragment {
      opacity: 0.85;
      transition: opacity 3s ease;
    }

    /* UI Panel */
    #ui-panel {
      position: absolute;
      top: 50px;
      left: 50px;
      background: var(--panel-bg);
      padding: 24px;
      border-radius: 2px;
      backdrop-filter: blur(10px);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
      display: flex;
      flex-direction: column;
      gap: 16px;
      z-index: 10;
      opacity: 0;
      pointer-events: none;
      visibility: hidden;
      transition: opacity 0.6s ease, transform 0.6s ease, visibility 0.6s;
      transform: translateY(-10px);
      border: 1px solid rgba(255, 255, 255, 0.4);
    }

    #ui-panel.visible {
      opacity: 1;
      pointer-events: auto;
      visibility: visible;
      transform: translateY(0);
    }

    .ui-label {
      font-size: 11px;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: #8a8884;
      margin-bottom: 8px;
    }

    .options-row {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      max-width: 240px;
    }

    .color-btn {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1px solid rgba(0, 0, 0, 0.05);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .color-btn:hover {
      transform: scale(1.15);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .texture-btn {
      padding: 6px 12px;
      background: transparent;
      border: 1px solid var(--btn-border);
      color: var(--text-color);
      font-size: 11px;
      letter-spacing: 1px;
      border-radius: 12px;
      transition: all 0.3s ease;
    }

    .texture-btn:hover {
      background: rgba(0, 0, 0, 0.03);
    }

    /* Let Go Button */
    #let-go-btn {
      position: absolute;
      bottom: 50px;
      right: 50px;
      padding: 14px 28px;
      background: transparent;
      border: 1px solid var(--btn-border);
      color: var(--text-color);
      font-size: 12px;
      letter-spacing: 3px;
      border-radius: 24px;
      transition: all 0.5s ease;
      z-index: 10;
    }

    #let-go-btn:hover {
      background: rgba(90, 88, 84, 0.04);
      border-color: rgba(90, 88, 84, 0.7);
      transform: translateY(-2px);
    }

    #let-go-btn.hidden {
      opacity: 0;
      pointer-events: none;
    }

    /* Final Message */
    #final-message {
      position: absolute;
      top: calc(50% + 220px);
      left: 50%;
      transform: translate(-50%, -50%);
      font-size: 16px;
      letter-spacing: 2px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 3s ease;
      text-align: center;
      z-index: 20;
      color: #4a4844;
      font-weight: 300;
    }

    #final-message.visible {
      opacity: 1;
    }

    /* Textures via SVG filters */
    #filter-defs {
      position: absolute;
      top: 0;
      left: 0;
      width: 0;
      height: 0;
    }

    /* Post Action Buttons */
    #post-action-container {
      position: absolute;
      bottom: 40px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 16px;
      opacity: 0;
      pointer-events: none;
      visibility: hidden;
      transition: opacity 2s ease, visibility 2s;
      transition-delay: 1.5s;
      z-index: 20;
    }

    #post-action-container.visible {
      opacity: 1;
      pointer-events: auto;
      visibility: visible;
    }

    .action-btn {
      padding: 10px 24px;
      background: transparent;
      border: 1px solid var(--btn-border);
      color: var(--text-color);
      font-size: 11px;
      letter-spacing: 2px;
      border-radius: 20px;
      transition: all 0.3s ease;
    }

    .action-btn:hover {
      background: rgba(90, 88, 84, 0.04);
      border-color: rgba(90, 88, 84, 0.7);
      transform: translateY(-1px);
    }

    .tracing-path {
      pointer-events: none;
      opacity: 0;
      filter: drop-shadow(0 0 4px rgba(255, 235, 133, 0.8)) drop-shadow(0 0 10px rgba(255, 215, 0, 0.4));
    }